import React, { useState, useEffect, PropsWithChildren } from "react";
import { connect } from "react-redux";
import { Card, Button } from "antd";
import NavHeader from "@/components/NavHeader";
import { getLesson } from "@/api/home";
import { RouteComponentProps } from "react-router";
import Lesson from "@/typings/lesson";
import { StaticContext } from "react-router";
import { LessonResult } from "@/typings/lesson";
import actions from "@/store/actions/cart";
import { CombinedState } from "@/store/reducers";
import "./index.less"
const { Meta } = Card;
interface Params {
  id: string;
}
type RouteProps = RouteComponentProps<Params, StaticContext, Lesson>;
type StateProps = ReturnType<typeof mapStateToProps>;
type DispatchProps = typeof actions;
type Props = PropsWithChildren<RouteProps & StateProps & DispatchProps>;


function Detail(props: Props) {
  let [lesson, setLesson] = useState<Lesson>({} as Lesson);
  useEffect(() => {
    (async () => {
      let lesson: Lesson = props.location.state;
      if (!lesson) {
        let id = props.match.params.id;
        let result: LessonResult = await getLesson<LessonResult>(id);
        if (result.success) lesson = result.data;
        console.log(lesson)
      }
      setLesson(lesson);
    })();
  }, []);
    const addCartItem = (lesson: Lesson) => {
        //https://developer.mozilla.org/zh-CN/docs/Web/API/Element/getBoundingClientRect
        let video: HTMLVideoElement = document.querySelector("#lesson-video");
        let cart: HTMLSpanElement = document.querySelector(
          ".anticon.anticon-shopping-cart"
        );
        let clonedVideo: HTMLVideoElement = video.cloneNode(
          true
        ) as HTMLVideoElement;
        let videoWith = video.offsetWidth;
        let videoHeight = video.offsetHeight;
        let cartWith = cart.offsetWidth;
        let cartHeight = cart.offsetHeight;
        let videoLeft = video.getBoundingClientRect().left;
        let videoTop = video.getBoundingClientRect().top;
        let cartRight = cart.getBoundingClientRect().right;
        let cartBottom = cart.getBoundingClientRect().bottom;
        clonedVideo.style.cssText = `
              z-index: 1000;
              opacity:0.8;
              position:fixed;
              width:${videoWith}px;
              height:${videoHeight}px;
              top:${videoTop}px;
              left:${videoLeft}px;
              transition: all 2s ease-in-out;
            `;
        document.body.appendChild(clonedVideo);
        setTimeout(function () {
          clonedVideo.style.left = cartRight - cartWith / 2 + "px";
          clonedVideo.style.top = cartBottom - cartHeight / 2 + "px";
          clonedVideo.style.width = `0px`;
          clonedVideo.style.height = `0px`;
          clonedVideo.style.opacity = "50";
        }, 0);
        props.addCartItem(lesson);
      };
  return (
    <>
      <NavHeader history={props.history}>课程详情</NavHeader>
        <Card
        hoverable
        style={{ width: "100%" }}
        cover={<img id="lesson-video" src={lesson.poster} />}
      >
        <Meta
          title={lesson.title}
          description={
            <>
              <p>价格: ¥{lesson.price}元</p>
              <p>
                <Button
                  className="add-cart"
                  onClick={() => addCartItem(lesson)}
                >
                  加入购物车
                </Button>
              </p>
            </>
          }
        />
      </Card>
    </>
  );
}
/**
 * https://cubic-bezier.com/#0,0,1,1
 * linear:cubic-bezier(0,0,1,1)             匀速运动
 * ease:cubic-bezier(0.25,0.1,0.25,1)       先慢后快再慢
 * ease-in:cubic-bezier(0.42,0,1,1)         先慢后快
 * ease-out:cubic-bezier(0,0,0.58,1)        先快后慢
 * ease-in-out:cubic-bezier(0.42,0,0.58,1)  先慢后快再慢
 */
let mapStateToProps = (state: CombinedState): CombinedState => state;
console.log(actions)
export default connect(mapStateToProps, actions)(Detail);